ABOUT US: iGoSmart-Pro, headquartered in Irvine, iGoSmart-Pro believes in developing high quality products that last a lifetime. On a Market Place filled with low cost, short lived, quick fix mounting solutions, we chose to design and manufacture our own line of products which we designed to handle & endure the roughest conditions. Our Premium line is here to serve many industries including commercial trucking, aviation,off roading,race drivers, track drivers, car enthusiasts and home bloggers. DEVICE COMPATIBILITY: iGoSmart-Pro Suction Pad Mount with 20mm CNC machined ball end Compatibility. Machined ball ends not included and are sold separately. All of our components are compatible with 20mm ball systems from manufacturers such as Arkon, iBolt, RAM,Tackform, and others which use same sized 20mm ball. These arms can also be used for security cameras that have 1/4'-20 threads on them when used with the 1/4'-20 ball mounts (which are sold separately). INSTALLATION: Easy 9.5" Aluminum mounting arm allows for various arm length adjustment and direction viewing angles. Developed for cars and trucks with deeper dashboards and windshields. Length with 3 arms is 9.5" and with long arm removed length can be shortened to 6" MOUNTING POSITION VERSATILITY: This aluminum arm allows for various configurations allowing easy repositioning, along with a SOLID vibration free hold. All aluminum arm construction. Total arm length is 9.5". Dual ball and socket joints provide multiple points of articulation. Locking elbow joint allows for additional positioning options and accommodates the iGoSmart-Pro Suction Cup Pad Mount. The center of at the arm position turns up to 180 degrees and the end ball units turn 360 degrees allowing for perfect viewing and adjustment angles. 20mm ball not included. This is not compatible with 17mm ball mounts. This is compatible with 20-21mm ball mounts which are separately and not included in this package. For more information on how this arm works please see our Youtube page and do a search for iGoSmart-Pro on YouTube. We also have a longer 15" version of this arm available which comes with 1/4"-20 male ball ends on each side. Search under our products to see longer arm version. Recently Amazon fulfillment has been taking a long time to restock if you need the item in a hurry you can order directly from our website as we have product in stock on our website and don’t have fulfillment waiting issues.